在安装CDH版本的hadoop的时候, 我们下载下来的CDH的hadoop安装包中, 并没有native包,不支持各个任务阶段的压缩功能,但在生产任务中是必须要支持压缩功能的,所以要对CDH进行编译以支持压缩功能;
本次编译使用的各软件版本:
cdh:hadoop-2.6.0-cdh5.7.0-src.tar.gz
jdk:1.7
maven:apache-maven-3.3.9-bin.tar.gz
protobuf:protobuf-2.5.0.tar.gz
配置jdk的环境变量:
[root@hadoop004 soft]# cat /etc/profile.d/java.sh export JAVA_HOME=/usr/java/jdk export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar export PATH=$JAVA_HOME/bin:$PATH [root@hadoop004 soft]# java -version java version "1.7.0_79" Java(TM) SE Runtime Environment (build 1.7.0_79-b15) Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode)
配置maven的环境变量:
#配置环境变量 [root@hadoop004 soft]# cat /etc/profile.d/maven.sh MAVEN_HOME=/data/soft/maven export PATH=$MAVEN_HOME/bin:$PATH [root@hadoop004 soft]# mvn --version Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-11T00:41:47+08:00) Maven home: /data/soft/maven Java version: 1.7.0_79, vendor: Oracle Corporation Java home: /usr/java/jdk1.7.0_79/jre Default locale: en_US, platform encoding: UTF-8 OS name: "linux", version: "3.10.0-862.3.2.el7.x86_64", arch: "amd64", family: "unix" #配置mvn的本地存放地址 <localRepository>/data/soft/maven/repo</localRepository> #配置mvn下载源为阿里云的maven仓库 <mirror> <id>alimaven</id> <name>aliyun maven</name> <url>http://maven.aliyun.com/nexus/content/groups/public/</url> <mirrorOf>central</mirrorOf> </mirror>
编译安装protobuf并配置环境变量:
#编译安装命令 tar -zxvf protobuf-2.5.0.tar.gz cd protobuf-2.5.0 ./configure --prefix=/root/protobuf/ make make install #配置环境变量 [root@hadoop004 soft]# cat /etc/profile.d/protobul.sh PROTOC_HOME=/usr/local/protobuf export PATH=$PROTOC_HOME/bin:$PATH source /etc/profile.d/protobul.sh #查看是否安装成功 [root@hadoop004 soft]# protoc --version libprotoc 2.5.0